Home / 4,122.36-5,687.34-2,707.80

Finding the Fourth Proportional to 4,122.36, 5,687.34 and 2,707.80

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Solution

The fourth proportional to 4,122.36, 5,687.34 and 2,707.80 is: 3,735.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.36 : 5,687.34 = 2,707.80 : x
  2. Step 2: Convert to fraction form
    4,122.36/5,687.34 = 2,707.80/x
  3. Step 3: Cross multiply
    4,122.36x = 5,687.34 × 2,707.80
  4. Step 4: Simplify right side
    4,122.36x = 15,400,179.25
  5. Step 5: Solve for x
    x = 15,400,179.25/4,122.36
  6. Step 6: Final answer
    x = 3,735.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.